EDIT : read too fast thought this was about st.dataframe
Hey guys, I wanted to share the solution I used to properly format numbers when displaying a DataFrame with streamlit.
We can use the style property of a pandas DataFrame, by specifying a formatter (a dict with column names as keys and formatters as values), a thousands character used to separate thousands and a decimal character as decimal separator. This is really useful as, for example, French people use a space as thousands separator and a comma as decimal separator.
Here is an example. I have a df with 4 columns, 3 of which need specific formats :
# df is a pd.DataFrame with columns ["Segment", "Début", "Fin", "Variation"]
# Apply your style to desired columns
df = df.style.format(
{
"Début": lambda x : '{:,.1f} €'.format(x),
"Fin": lambda x : '{:,.1f} €'.format(x),
"Variation": lambda x : '{:,.1f} %'.format(x),
},
thousands=' ',
decimal=',',
)
# Show the table
st.dataframe(df)
Result :
Hope this helps 